1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22 /*
23 * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
24 * Copyright 2020 Nexenta by DDN, Inc. All rights reserved.
25 * Copyright 2023 RackTop Systems, Inc.
26 */
27
28 /*
29 * smbstat: Server Message Block File System statistics
30 *
31 * The statistics this CLI displays come from two sources:
32 *
33 * 1) The kernel module 'smbsrv'.
34 * 2) The SMB workers task queue statistics the task queue manager of Solaris
35 * maintains.
36 *
37 * The flow of the code is the following:
38 *
39 *
40 * +----------------+
41 * | Initialization |
42 * +----------------+
43 * |
44 * |
45 * v
46 * +--------------------------*
47 * | Take a snapshot the data | <--------+
48 * +--------------------------+ |
49 * | |
50 * | |
51 * v |
52 * +----------------------+ |
53 * | Process the snapshot | |
54 * +----------------------+ |
55 * | |
56 * | |
57 * v |
58 * +------------------------------------+ |
59 * | Print the result of the processing | |
60 * +------------------------------------+ |
61 * | |
62 * | |
63 * v |
64 * Yes --------------- |
65 * +------------ < interval == 0 ? > |
66 * | --------------- |
67 * | | |
68 * | | No |
69 * | v |
70 * | +------------------------+ |
71 * | | Sleep for the duration | ----------+
72 * | | of the interval. |
73 * | +------------------------+
74 * |
75 * +---------------------+
76 * |
77 * v
78 *
79 * Exit
80 *
81 * There are two sets of snapshots. One set for the smbsrv module and the other
82 * for the task queue (SMB workers). Each set contains 2 snapshots. One is
83 * labeled 'current' the other one 'previous'. Their role changes after each
84 * snapshot. The 'current' becomes 'previous' and vice versa.
85 * The first snapshot taken is compared against the data gathered since the
86 * smbsrv module was loaded. Subsequent snapshots will be compared against the
87 * previous snapshot.
88 */
89
90 #include <stdio.h>
91 #include <stdlib.h>
92 #include <unistd.h>
93 #include <kstat.h>
94 #include <stdarg.h>
95 #include <errno.h>
96 #include <inttypes.h>
97 #include <strings.h>
98 #include <utility.h>
99 #include <libintl.h>
100 #include <zone.h>
101 #include <termios.h>
102 #include <stropts.h>
103 #include <math.h>
104 #include <umem.h>
105 #include <locale.h>
106 #include <sys/processor.h>
107 #include <smbsrv/smb_kstat.h>
108 #include <smbsrv/smb.h>
109 #include <smbsrv/smb2.h>
110
111 #if !defined(TEXT_DOMAIN)
112 #define TEXT_DOMAIN "SYS_TEST"
113 #endif /* TEXT_DOMAIN */
114
115 #define SMBSTAT_ID_NO_CPU -1
116 #define SMBSTAT_SNAPSHOT_COUNT 2 /* Must be a power of 2 */
117 #define SMBSTAT_SNAPSHOT_MASK (SMBSTAT_SNAPSHOT_COUNT - 1)
118
119 #define SMBSTAT_HELP \
120 "Usage: smbstat [-acnrtuz] [interval]\n" \
121 " -c: display counters\n" \
122 " -t: display throughput\n" \
123 " -u: display utilization\n" \
124 " -r: display requests\n" \
125 " -a: all the requests (supported and unsupported)\n" \
126 " -z: skip the requests not received\n" \
127 " -n: display in alphabetic order\n" \
128 " interval: refresh cycle in seconds\n"
129
130 #define SMBSRV_COUNTERS_BANNER "\n nbt tcp users trees files pipes\n"
131 #define SMBSRV_COUNTERS_FORMAT "%5d %5d %5d %5d %5d %5d\n"
132
133 #define SMBSRV_THROUGHPUT_BANNER \
134 "\nrbytes/s tbytes/s reqs/s reads/s writes/s\n"
135 #define SMBSRV_THROUGHPUT_FORMAT \
136 "%1.3e %1.3e %1.3e %1.3e %1.3e\n"
137
138 #define SMBSRV_UTILIZATION_BANNER \
139 "\n wcnt rcnt wtime rtime" \
140 " w%% r%% u%% sat usr%% sys%% idle%%\n"
141 #define SMBSRV_UTILIZATION_FORMAT \
142 "%1.3e %1.3e %1.3e %1.3e %3.0f %3.0f %3.0f %s " \
143 "%3.0f %3.0f %3.0f\n"
144
145 #define SMBSRV_REQUESTS_BANNER \
146 "\n%30s code %% rbytes/s tbytes/s req/s rt-mean" \
147 " rt-stddev\n"
148 #define SMBSRV_REQUESTS_FORMAT \
149 "%30s %02X %3.0f %1.3e %1.3e %1.3e %1.3e %1.3e\n"
150
151 typedef enum {
152 CPU_TICKS_IDLE = 0,
153 CPU_TICKS_USER,
154 CPU_TICKS_KERNEL,
155 CPU_TICKS_SENTINEL
156 } cpu_state_idx_t;
157
158 typedef struct smbstat_cpu_snapshot {
159 processorid_t cs_id;
160 int cs_state;
161 uint64_t cs_ticks[CPU_TICKS_SENTINEL];
162 } smbstat_cpu_snapshot_t;
163
164 typedef struct smbstat_srv_snapshot {
165 hrtime_t ss_snaptime;
166 smbsrv_kstats_t ss_data;
167 } smbstat_srv_snapshot_t;
168
169 typedef struct smbstat_wrk_snapshot {
170 uint64_t ws_nbacklog;
171 } smbstat_wrk_snapshot_t;
172
173 typedef struct smbstat_req_info {
174 char ri_name[KSTAT_STRLEN];
175 int ri_opcode;
176 double ri_pct;
177 double ri_tbs;
178 double ri_rbs;
179 double ri_rqs;
180 double ri_stddev;
181 double ri_mean;
182 } smbstat_req_info_t;
183
184 typedef struct smbstat_srv_info {
185 double si_hretime;
186 double si_etime;
187 double si_total_nreqs;
188 /*
189 * Counters
190 */
191 uint32_t si_nbt_sess; /* NBT sessions */
192 uint32_t si_tcp_sess; /* TCP sessions */
193 uint32_t si_users; /* Users logged in */
194 uint32_t si_trees; /* Trees connected */
195 uint32_t si_files; /* Open files */
196 uint32_t si_pipes; /* Open pipes */
197 /*
198 * Throughput of the server
199 */
200 double si_tbs; /* Bytes transmitted / second */
201 double si_rbs; /* Bytes received / second */
202 double si_rqs; /* Requests treated / second */
203 double si_rds; /* Reads treated / second */
204 double si_wrs; /* Writes treated / second */
205 /*
206 * Utilization of the server
207 */
208 double si_wpct; /* */
209 double si_rpct; /* */
210 double si_upct; /* Utilization in % */
211 double si_avw; /* Average number of requests waiting */
212 double si_avr; /* Average number of requests running */
213 double si_wserv; /* Average waiting time */
214 double si_rserv; /* Average running time */
215 boolean_t si_sat;
216 double si_ticks[CPU_TICKS_SENTINEL];
217 /*
218 * Latency & Throughput per request
219 */
220 smbstat_req_info_t si_reqs1[SMBSRV_KS_NREQS1];
221 smbstat_req_info_t si_reqs2[SMBSRV_KS_NREQS2];
222 } smbstat_srv_info_t;
223
224 static void smbstat_init(void);
225 static void smbstat_fini(void);
226 static void smbstat_kstat_snapshot(void);
227 static void smbstat_kstat_process(void);
228 static void smbstat_kstat_print(void);
229
230 static void smbstat_print_counters(void);
231 static void smbstat_print_throughput(void);
232 static void smbstat_print_utilization(void);
233 static void smbstat_print_requests(void);
234
235 static void smbstat_cpu_init(void);
236 static void smbstat_cpu_fini(void);
237 static smbstat_cpu_snapshot_t *smbstat_cpu_current_snapshot(void);
238 static smbstat_cpu_snapshot_t *smbstat_cpu_previous_snapshot(void);
239 static void smbstat_cpu_snapshot(void);
240 static void smbstat_cpu_process(void);
241
242 static void smbstat_wrk_init(void);
243 static void smbstat_wrk_fini(void);
244 static void smbstat_wrk_snapshot(void);
245 static void smbstat_wrk_process(void);
246 static smbstat_wrk_snapshot_t *smbstat_wrk_current_snapshot(void);
247
248 static void smbstat_srv_init(void);
249 static void smbstat_srv_fini(void);
250 static void smbstat_srv_snapshot(void);
251 static void smbstat_srv_process(void);
252 static void smbstat_srv_process_counters(smbstat_srv_snapshot_t *);
253 static void smbstat_srv_process_throughput(smbstat_srv_snapshot_t *,
254 smbstat_srv_snapshot_t *);
255 static void smbstat_srv_process_utilization(smbstat_srv_snapshot_t *,
256 smbstat_srv_snapshot_t *);
257 static void smbstat_srv_process_requests(smbstat_srv_snapshot_t *,
258 smbstat_srv_snapshot_t *);
259 static void smbstat_srv_process_one_req(smbstat_req_info_t *,
260 smb_kstat_req_t *, smb_kstat_req_t *, boolean_t);
261
262 static smbstat_srv_snapshot_t *smbstat_srv_current_snapshot(void);
263 static smbstat_srv_snapshot_t *smbstat_srv_previous_snapshot(void);
264
265 static void *smbstat_zalloc(size_t);
266 static void smbstat_free(void *, size_t);
267 static void smbstat_fail(int, char *, ...);
268 static void smbstat_snapshot_inc_idx(void);
269 static void smbstat_usage(FILE *, int) __NORETURN;
270 static uint_t smbstat_strtoi(char const *, char *);
271 static double smbstat_hrtime_delta(hrtime_t, hrtime_t);
272 static double smbstat_sub_64(uint64_t, uint64_t);
273 static void smbstat_req_order(void);
274 static double smbstat_zero(double);
275 static void smbstat_termio_init(void);
276
277 static char *smbstat_cpu_states[CPU_TICKS_SENTINEL] = {
278 "cpu_ticks_idle",
279 "cpu_ticks_user",
280 "cpu_ticks_kernel"
281 };
282
283 static boolean_t smbstat_opt_a = B_FALSE; /* all */
284 static boolean_t smbstat_opt_c = B_FALSE; /* counters */
285 static boolean_t smbstat_opt_n = B_FALSE; /* by name */
286 static boolean_t smbstat_opt_u = B_FALSE; /* utilization */
287 static boolean_t smbstat_opt_t = B_FALSE; /* throughput */
288 static boolean_t smbstat_opt_r = B_FALSE; /* requests */
289 static boolean_t smbstat_opt_z = B_FALSE; /* non-zero requests */
290
291 static uint_t smbstat_interval = 0;
292 static long smbstat_nrcpus = 0;
293 static kstat_ctl_t *smbstat_ksc = NULL;
294 static kstat_t *smbstat_srv_ksp = NULL;
295 static kstat_t *smbstat_wrk_ksp = NULL;
296 static struct winsize smbstat_ws;
297 static uint16_t smbstat_rows = 0;
298
299 static int smbstat_snapshot_idx = 0;
300 static smbstat_cpu_snapshot_t *smbstat_cpu_snapshots[SMBSTAT_SNAPSHOT_COUNT];
301 static smbstat_srv_snapshot_t smbstat_srv_snapshots[SMBSTAT_SNAPSHOT_COUNT];
302 static smbstat_wrk_snapshot_t smbstat_wrk_snapshots[SMBSTAT_SNAPSHOT_COUNT];
303 static smbstat_srv_info_t smbstat_srv_info;
304
305 /*
306 * main
307 */
308 int
main(int argc,char * argv[])309 main(int argc, char *argv[])
310 {
311 int c;
312
313 (void) setlocale(LC_ALL, "");
314 (void) textdomain(TEXT_DOMAIN);
315
316 if (is_system_labeled()) {
317 (void) fprintf(stderr,
318 gettext("%s: Trusted Extensions not supported.\n"),
319 argv[0]);
320 return (1);
321 }
322
323 while ((c = getopt(argc, argv, "achnrtuz")) != EOF) {
324 switch (c) {
325 case 'a':
326 smbstat_opt_a = B_TRUE;
327 break;
328 case 'n':
329 smbstat_opt_n = B_TRUE;
330 break;
331 case 'u':
332 smbstat_opt_u = B_TRUE;
333 break;
334 case 'c':
335 smbstat_opt_c = B_TRUE;
336 break;
337 case 'r':
338 smbstat_opt_r = B_TRUE;
339 break;
340 case 't':
341 smbstat_opt_t = B_TRUE;
342 break;
343 case 'z':
344 smbstat_opt_z = B_TRUE;
345 break;
346 case 'h':
347 smbstat_usage(stdout, 0);
348 default:
349 smbstat_usage(stderr, 1);
350 }
351 }
352
353 if (!smbstat_opt_u &&
354 !smbstat_opt_c &&
355 !smbstat_opt_r &&
356 !smbstat_opt_t) {
357 /* Default options when none is specified. */
358 smbstat_opt_u = B_TRUE;
359 smbstat_opt_t = B_TRUE;
360 }
361
362 if (optind < argc) {
363 smbstat_interval =
364 smbstat_strtoi(argv[optind], "invalid count");
365 optind++;
366 }
367
368 if ((argc - optind) > 1)
369 smbstat_usage(stderr, 1);
370
371 (void) atexit(smbstat_fini);
372 smbstat_init();
373 for (;;) {
374 smbstat_kstat_snapshot();
375 smbstat_kstat_process();
376 smbstat_kstat_print();
377 if (smbstat_interval == 0)
378 break;
379 (void) sleep(smbstat_interval);
380 smbstat_snapshot_inc_idx();
381 }
382 return (0);
383 }
384
385 /*
386 * smbstat_init
387 *
388 * Global initialization.
389 */
390 static void
smbstat_init(void)391 smbstat_init(void)
392 {
393 if ((smbstat_ksc = kstat_open()) == NULL)
394 smbstat_fail(1, gettext("kstat_open(): can't open /dev/kstat"));
395
396 smbstat_cpu_init();
397 smbstat_srv_init();
398 smbstat_wrk_init();
399 smbstat_req_order();
400 }
401
402 /*
403 * smbstat_fini
404 *
405 * Releases the resources smbstat_init() allocated.
406 */
407 static void
smbstat_fini(void)408 smbstat_fini(void)
409 {
410 smbstat_wrk_fini();
411 smbstat_srv_fini();
412 smbstat_cpu_fini();
413 (void) kstat_close(smbstat_ksc);
414 }
415
416 /*
417 * smbstat_kstat_snapshot
418 *
419 * Takes a snapshot of the data.
420 */
421 static void
smbstat_kstat_snapshot(void)422 smbstat_kstat_snapshot(void)
423 {
424 smbstat_cpu_snapshot();
425 smbstat_srv_snapshot();
426 smbstat_wrk_snapshot();
427 }
428
429 /*
430 * smbstat_kstat_process
431 */
432 static void
smbstat_kstat_process(void)433 smbstat_kstat_process(void)
434 {
435 smbstat_cpu_process();
436 smbstat_srv_process();
437 smbstat_wrk_process();
438 }
439
440 /*
441 * smbstat_kstat_print
442 *
443 * Print the data processed.
444 */
445 static void
smbstat_kstat_print(void)446 smbstat_kstat_print(void)
447 {
448 smbstat_termio_init();
449 smbstat_print_counters();
450 smbstat_print_throughput();
451 smbstat_print_utilization();
452 smbstat_print_requests();
453 (void) fflush(stdout);
454 }
455
456 /*
457 * smbstat_print_counters
458 *
459 * Displays the SMB server counters (session, users...).
460 */
461 static void
smbstat_print_counters(void)462 smbstat_print_counters(void)
463 {
464 if (!smbstat_opt_c)
465 return;
466
467 if (smbstat_opt_u || smbstat_opt_r || smbstat_opt_t ||
468 (smbstat_rows == 0) || (smbstat_rows >= smbstat_ws.ws_row)) {
469 (void) printf(SMBSRV_COUNTERS_BANNER);
470 smbstat_rows = 1;
471 }
472
473 (void) printf(SMBSRV_COUNTERS_FORMAT,
474 smbstat_srv_info.si_nbt_sess,
475 smbstat_srv_info.si_tcp_sess,
476 smbstat_srv_info.si_users,
477 smbstat_srv_info.si_trees,
478 smbstat_srv_info.si_files,
479 smbstat_srv_info.si_pipes);
480
481 ++smbstat_rows;
482 }
483 /*
484 * smbstat_print_throughput
485 *
486 * Formats the SMB server throughput output.
487 */
488 static void
smbstat_print_throughput(void)489 smbstat_print_throughput(void)
490 {
491 if (!smbstat_opt_t)
492 return;
493
494 if (smbstat_opt_u || smbstat_opt_r || smbstat_opt_c ||
495 (smbstat_rows == 0) || (smbstat_rows >= smbstat_ws.ws_row)) {
496 (void) printf(SMBSRV_THROUGHPUT_BANNER);
497 smbstat_rows = 1;
498 }
499 (void) printf(SMBSRV_THROUGHPUT_FORMAT,
500 smbstat_zero(smbstat_srv_info.si_rbs),
501 smbstat_zero(smbstat_srv_info.si_tbs),
502 smbstat_zero(smbstat_srv_info.si_rqs),
503 smbstat_zero(smbstat_srv_info.si_rds),
504 smbstat_zero(smbstat_srv_info.si_wrs));
505
506 ++smbstat_rows;
507 }
508
509 /*
510 * smbstat_print_utilization
511 */
512 static void
smbstat_print_utilization(void)513 smbstat_print_utilization(void)
514 {
515 char *sat;
516 if (!smbstat_opt_u)
517 return;
518
519 if (smbstat_opt_t || smbstat_opt_r || smbstat_opt_c ||
520 (smbstat_rows == 0) || (smbstat_rows >= smbstat_ws.ws_row)) {
521 (void) printf(SMBSRV_UTILIZATION_BANNER);
522 smbstat_rows = 1;
523 }
524
525 if (smbstat_srv_info.si_sat)
526 sat = "yes";
527 else
528 sat = "no ";
529
530 (void) printf(SMBSRV_UTILIZATION_FORMAT,
531 smbstat_srv_info.si_avw,
532 smbstat_srv_info.si_avr,
533 smbstat_srv_info.si_wserv,
534 smbstat_srv_info.si_rserv,
535 smbstat_zero(smbstat_srv_info.si_wpct),
536 smbstat_zero(smbstat_srv_info.si_rpct),
537 smbstat_zero(smbstat_srv_info.si_upct),
538 sat,
539 smbstat_srv_info.si_ticks[CPU_TICKS_USER],
540 smbstat_srv_info.si_ticks[CPU_TICKS_KERNEL],
541 smbstat_srv_info.si_ticks[CPU_TICKS_IDLE]);
542
543 ++smbstat_rows;
544 }
545
546 /*
547 * smbstat_print_requests
548 */
549 static void
smbstat_print_requests(void)550 smbstat_print_requests(void)
551 {
552 smbstat_req_info_t *prq;
553 int i;
554
555 if (!smbstat_opt_r)
556 return;
557
558 (void) printf(SMBSRV_REQUESTS_BANNER, " ");
559
560 prq = smbstat_srv_info.si_reqs1;
561 for (i = 0; i < SMBSRV_KS_NREQS1; i++) {
562 if (!smbstat_opt_a &&
563 strncmp(prq[i].ri_name, "Invalid", sizeof ("Invalid")) == 0)
564 continue;
565
566 if (!smbstat_opt_z || (prq[i].ri_pct != 0)) {
567 (void) printf(SMBSRV_REQUESTS_FORMAT,
568 prq[i].ri_name,
569 prq[i].ri_opcode,
570 smbstat_zero(prq[i].ri_pct),
571 smbstat_zero(prq[i].ri_rbs),
572 smbstat_zero(prq[i].ri_tbs),
573 smbstat_zero(prq[i].ri_rqs),
574 prq[i].ri_mean,
575 prq[i].ri_stddev);
576 }
577 }
578
579 prq = smbstat_srv_info.si_reqs2;
580 for (i = 0; i < SMBSRV_KS_NREQS2; i++) {
581 if (!smbstat_opt_a && i == SMB2_INVALID_CMD)
582 continue;
583
584 if (!smbstat_opt_z || (prq[i].ri_pct != 0)) {
585 (void) printf(SMBSRV_REQUESTS_FORMAT,
586 prq[i].ri_name,
587 prq[i].ri_opcode,
588 smbstat_zero(prq[i].ri_pct),
589 smbstat_zero(prq[i].ri_rbs),
590 smbstat_zero(prq[i].ri_tbs),
591 smbstat_zero(prq[i].ri_rqs),
592 prq[i].ri_mean,
593 prq[i].ri_stddev);
594 }
595 }
596 }
597
598 /*
599 * smbstat_cpu_init
600 */
601 static void
smbstat_cpu_init(void)602 smbstat_cpu_init(void)
603 {
604 size_t size;
605 int i;
606
607 smbstat_nrcpus = sysconf(_SC_CPUID_MAX) + 1;
608 size = smbstat_nrcpus * sizeof (smbstat_cpu_snapshot_t);
609
610 for (i = 0; i < SMBSTAT_SNAPSHOT_COUNT; i++)
611 smbstat_cpu_snapshots[i] = smbstat_zalloc(size);
612 }
613
614 /*
615 * smbstat_cpu_fini
616 */
617 static void
smbstat_cpu_fini(void)618 smbstat_cpu_fini(void)
619 {
620 size_t size;
621 int i;
622
623 size = smbstat_nrcpus * sizeof (smbstat_cpu_snapshot_t);
624
625 for (i = 0; i < SMBSTAT_SNAPSHOT_COUNT; i++)
626 smbstat_free(smbstat_cpu_snapshots[i], size);
627 }
628
629 /*
630 * smbstat_cpu_current_snapshot
631 */
632 static smbstat_cpu_snapshot_t *
smbstat_cpu_current_snapshot(void)633 smbstat_cpu_current_snapshot(void)
634 {
635 return (smbstat_cpu_snapshots[smbstat_snapshot_idx]);
636 }
637
638 /*
639 * smbstat_cpu_previous_snapshot
640 */
641 static smbstat_cpu_snapshot_t *
smbstat_cpu_previous_snapshot(void)642 smbstat_cpu_previous_snapshot(void)
643 {
644 int idx;
645
646 idx = (smbstat_snapshot_idx - 1) & SMBSTAT_SNAPSHOT_MASK;
647 return (smbstat_cpu_snapshots[idx]);
648 }
649
650 /*
651 * smbstat_cpu_snapshot
652 */
653 static void
smbstat_cpu_snapshot(void)654 smbstat_cpu_snapshot(void)
655 {
656 kstat_t *ksp;
657 kstat_named_t *ksn;
658 smbstat_cpu_snapshot_t *curr;
659 long i;
660 int j;
661
662 curr = smbstat_cpu_current_snapshot();
663
664 for (i = 0; i < smbstat_nrcpus; i++, curr++) {
665 curr->cs_id = SMBSTAT_ID_NO_CPU;
666 curr->cs_state = p_online(i, P_STATUS);
667 /* If no valid CPU is present, move on to the next one */
668 if (curr->cs_state != P_ONLINE && curr->cs_state != P_NOINTR)
669 continue;
670
671 curr->cs_id = i;
672
673 ksp = kstat_lookup(smbstat_ksc, "cpu", i, "sys");
674 if (ksp == NULL)
675 smbstat_fail(1,
676 gettext("kstat_lookup('cpu sys %d') failed"), i);
677
678 if (kstat_read(smbstat_ksc, ksp, NULL) == -1)
679 smbstat_fail(1,
680 gettext("kstat_read('cpu sys %d') failed"), i);
681
682 for (j = 0; j < CPU_TICKS_SENTINEL; j++) {
683 ksn = kstat_data_lookup(ksp, smbstat_cpu_states[j]);
684 if (ksn == NULL)
685 smbstat_fail(1,
686 gettext("kstat_data_lookup('%s') failed"),
687 smbstat_cpu_states[j]);
688 curr->cs_ticks[j] = ksn->value.ui64;
689 }
690 }
691 }
692
693 /*
694 * smbstat_cpu_process
695 */
696 static void
smbstat_cpu_process(void)697 smbstat_cpu_process(void)
698 {
699 smbstat_cpu_snapshot_t *curr, *prev;
700 double total_ticks;
701 double agg_ticks[CPU_TICKS_SENTINEL];
702 int i, j;
703
704 curr = smbstat_cpu_current_snapshot();
705 prev = smbstat_cpu_previous_snapshot();
706 bzero(agg_ticks, sizeof (agg_ticks));
707 total_ticks = 0;
708
709 for (i = 0; i < smbstat_nrcpus; i++, curr++, prev++) {
710 for (j = 0; j < CPU_TICKS_SENTINEL; j++) {
711 agg_ticks[j] += smbstat_sub_64(curr->cs_ticks[j],
712 prev->cs_ticks[j]);
713 total_ticks += smbstat_sub_64(curr->cs_ticks[j],
714 prev->cs_ticks[j]);
715 }
716 }
717
718 for (j = 0; j < CPU_TICKS_SENTINEL; j++)
719 smbstat_srv_info.si_ticks[j] =
720 (agg_ticks[j] * 100.0) / total_ticks;
721 }
722
723 /*
724 * smbstat_wrk_init
725 */
726 static void
smbstat_wrk_init(void)727 smbstat_wrk_init(void)
728 {
729 smbstat_wrk_ksp =
730 kstat_lookup(smbstat_ksc, "unix", -1, SMBSRV_KSTAT_WORKERS);
731 if (smbstat_wrk_ksp == NULL)
732 smbstat_fail(1,
733 gettext("cannot retrieve smbsrv workers kstat\n"));
734 }
735
736 static void
smbstat_wrk_fini(void)737 smbstat_wrk_fini(void)
738 {
739 smbstat_wrk_ksp = NULL;
740 }
741
742 /*
743 * smbstat_wrk_snapshot
744 */
745 static void
smbstat_wrk_snapshot(void)746 smbstat_wrk_snapshot(void)
747 {
748 smbstat_wrk_snapshot_t *curr;
749 kstat_named_t *kn;
750
751 curr = smbstat_wrk_current_snapshot();
752
753 if (kstat_read(smbstat_ksc, smbstat_wrk_ksp, NULL) == -1)
754 smbstat_fail(1, gettext("kstat_read('%s') failed"),
755 smbstat_wrk_ksp->ks_name);
756
757 kn = kstat_data_lookup(smbstat_wrk_ksp, "nbacklog");
758 if ((kn == NULL) || (kn->data_type != KSTAT_DATA_UINT64))
759 smbstat_fail(1, gettext("kstat_read('%s') failed"),
760 "nbacklog");
761 curr->ws_nbacklog = kn->value.ui64;
762 }
763
764 /*
765 * smbstat_wrk_process
766 */
767 static void
smbstat_wrk_process(void)768 smbstat_wrk_process(void)
769 {
770 smbstat_wrk_snapshot_t *curr;
771
772 curr = smbstat_wrk_current_snapshot();
773
774 if (curr->ws_nbacklog != 0)
775 smbstat_srv_info.si_sat = B_TRUE;
776 else
777 smbstat_srv_info.si_sat = B_FALSE;
778 }
779
780 /*
781 * smbstat_wrk_current_snapshot
782 */
783 static smbstat_wrk_snapshot_t *
smbstat_wrk_current_snapshot(void)784 smbstat_wrk_current_snapshot(void)
785 {
786 return (&smbstat_wrk_snapshots[smbstat_snapshot_idx]);
787 }
788
789 /*
790 * smbstat_srv_init
791 */
792 static void
smbstat_srv_init(void)793 smbstat_srv_init(void)
794 {
795 smbstat_srv_ksp = kstat_lookup(smbstat_ksc, SMBSRV_KSTAT_MODULE,
796 getzoneid(), SMBSRV_KSTAT_STATISTICS);
797 if (smbstat_srv_ksp == NULL)
798 smbstat_fail(1, gettext("cannot retrieve smbsrv kstat\n"));
799 }
800
801 /*
802 * smbstat_srv_fini
803 */
804 static void
smbstat_srv_fini(void)805 smbstat_srv_fini(void)
806 {
807 smbstat_srv_ksp = NULL;
808 }
809
810 /*
811 * smbstat_srv_snapshot
812 *
813 * Take a snapshot of the smbsrv module statistics.
814 */
815 static void
smbstat_srv_snapshot(void)816 smbstat_srv_snapshot(void)
817 {
818 smbstat_srv_snapshot_t *curr;
819
820 curr = smbstat_srv_current_snapshot();
821
822 if ((kstat_read(smbstat_ksc, smbstat_srv_ksp, NULL) == -1) ||
823 (smbstat_srv_ksp->ks_data_size != sizeof (curr->ss_data)))
824 smbstat_fail(1, gettext("kstat_read('%s') failed"),
825 smbstat_srv_ksp->ks_name);
826
827 curr->ss_snaptime = smbstat_srv_ksp->ks_snaptime;
828 bcopy(smbstat_srv_ksp->ks_data, &curr->ss_data, sizeof (curr->ss_data));
829 }
830
831 /*
832 * smbstat_srv_process
833 *
834 * Processes the snapshot data.
835 */
836 static void
smbstat_srv_process(void)837 smbstat_srv_process(void)
838 {
839 smbstat_srv_snapshot_t *curr, *prev;
840
841 curr = smbstat_srv_current_snapshot();
842 prev = smbstat_srv_previous_snapshot();
843
844 if (prev->ss_snaptime == 0)
845 smbstat_srv_info.si_hretime =
846 smbstat_hrtime_delta(curr->ss_data.ks_start_time,
847 curr->ss_snaptime);
848 else
849 smbstat_srv_info.si_hretime =
850 smbstat_hrtime_delta(prev->ss_snaptime, curr->ss_snaptime);
851
852 smbstat_srv_info.si_etime = smbstat_srv_info.si_hretime / NANOSEC;
853 smbstat_srv_info.si_total_nreqs =
854 smbstat_sub_64(curr->ss_data.ks_nreq, prev->ss_data.ks_nreq);
855
856 if (smbstat_opt_c)
857 smbstat_srv_process_counters(curr);
858 if (smbstat_opt_t)
859 smbstat_srv_process_throughput(curr, prev);
860 if (smbstat_opt_u)
861 smbstat_srv_process_utilization(curr, prev);
862 if (smbstat_opt_r)
863 smbstat_srv_process_requests(curr, prev);
864 }
865
866 /*
867 * smbstat_srv_process_counters
868 */
869 static void
smbstat_srv_process_counters(smbstat_srv_snapshot_t * curr)870 smbstat_srv_process_counters(smbstat_srv_snapshot_t *curr)
871 {
872 smbstat_srv_info.si_nbt_sess = curr->ss_data.ks_nbt_sess;
873 smbstat_srv_info.si_tcp_sess = curr->ss_data.ks_tcp_sess;
874 smbstat_srv_info.si_users = curr->ss_data.ks_users;
875 smbstat_srv_info.si_trees = curr->ss_data.ks_trees;
876 smbstat_srv_info.si_files = curr->ss_data.ks_files;
877 smbstat_srv_info.si_pipes = curr->ss_data.ks_pipes;
878 }
879
880 /*
881 * smbstat_srv_process_throughput
882 *
883 * Processes the data relative to the throughput of the smbsrv module and
884 * stores the results in the structure smbstat_srv_info.
885 */
886 static void
smbstat_srv_process_throughput(smbstat_srv_snapshot_t * curr,smbstat_srv_snapshot_t * prev)887 smbstat_srv_process_throughput(
888 smbstat_srv_snapshot_t *curr,
889 smbstat_srv_snapshot_t *prev)
890 {
891 smbstat_srv_info.si_tbs =
892 smbstat_sub_64(curr->ss_data.ks_txb, prev->ss_data.ks_txb);
893 smbstat_srv_info.si_tbs /= smbstat_srv_info.si_etime;
894 smbstat_srv_info.si_rbs =
895 smbstat_sub_64(curr->ss_data.ks_rxb, prev->ss_data.ks_rxb);
896 smbstat_srv_info.si_rbs /= smbstat_srv_info.si_etime;
897 smbstat_srv_info.si_rqs = smbstat_srv_info.si_total_nreqs;
898 smbstat_srv_info.si_rqs /= smbstat_srv_info.si_etime;
899
900 smbstat_srv_info.si_rds = smbstat_sub_64(
901 curr->ss_data.ks_reqs1[SMB_COM_READ].kr_nreq,
902 prev->ss_data.ks_reqs1[SMB_COM_READ].kr_nreq);
903 smbstat_srv_info.si_rds += smbstat_sub_64(
904 curr->ss_data.ks_reqs1[SMB_COM_LOCK_AND_READ].kr_nreq,
905 prev->ss_data.ks_reqs1[SMB_COM_LOCK_AND_READ].kr_nreq);
906 smbstat_srv_info.si_rds += smbstat_sub_64(
907 curr->ss_data.ks_reqs1[SMB_COM_READ_RAW].kr_nreq,
908 prev->ss_data.ks_reqs1[SMB_COM_READ_RAW].kr_nreq);
909 smbstat_srv_info.si_rds += smbstat_sub_64(
910 curr->ss_data.ks_reqs1[SMB_COM_READ_ANDX].kr_nreq,
911 prev->ss_data.ks_reqs1[SMB_COM_READ_ANDX].kr_nreq);
912 smbstat_srv_info.si_rds += smbstat_sub_64(
913 curr->ss_data.ks_reqs2[SMB2_READ].kr_nreq,
914 prev->ss_data.ks_reqs2[SMB2_READ].kr_nreq);
915 smbstat_srv_info.si_rds /= smbstat_srv_info.si_etime;
916
917 smbstat_srv_info.si_wrs = smbstat_sub_64(
918 curr->ss_data.ks_reqs1[SMB_COM_WRITE].kr_nreq,
919 prev->ss_data.ks_reqs1[SMB_COM_WRITE].kr_nreq);
920 smbstat_srv_info.si_wrs += smbstat_sub_64(
921 curr->ss_data.ks_reqs1[SMB_COM_WRITE_AND_UNLOCK].kr_nreq,
922 prev->ss_data.ks_reqs1[SMB_COM_WRITE_AND_UNLOCK].kr_nreq);
923 smbstat_srv_info.si_wrs += smbstat_sub_64(
924 curr->ss_data.ks_reqs1[SMB_COM_WRITE_RAW].kr_nreq,
925 prev->ss_data.ks_reqs1[SMB_COM_WRITE_RAW].kr_nreq);
926 smbstat_srv_info.si_wrs += smbstat_sub_64(
927 curr->ss_data.ks_reqs1[SMB_COM_WRITE_AND_CLOSE].kr_nreq,
928 prev->ss_data.ks_reqs1[SMB_COM_WRITE_AND_CLOSE].kr_nreq);
929 smbstat_srv_info.si_wrs += smbstat_sub_64(
930 curr->ss_data.ks_reqs1[SMB_COM_WRITE_ANDX].kr_nreq,
931 prev->ss_data.ks_reqs1[SMB_COM_WRITE_ANDX].kr_nreq);
932 smbstat_srv_info.si_wrs += smbstat_sub_64(
933 curr->ss_data.ks_reqs2[SMB2_WRITE].kr_nreq,
934 prev->ss_data.ks_reqs2[SMB2_WRITE].kr_nreq);
935 smbstat_srv_info.si_wrs /= smbstat_srv_info.si_etime;
936 }
937
938 /*
939 * smbstat_srv_process_utilization
940 *
941 * Processes the data relative to the utilization of the smbsrv module and
942 * stores the results in the structure smbstat_srv_info.
943 */
944 static void
smbstat_srv_process_utilization(smbstat_srv_snapshot_t * curr,smbstat_srv_snapshot_t * prev)945 smbstat_srv_process_utilization(
946 smbstat_srv_snapshot_t *curr,
947 smbstat_srv_snapshot_t *prev)
948 {
949 double tw_delta, tr_delta;
950 double w_delta, r_delta;
951 double tps, rqs;
952
953 w_delta = smbstat_hrtime_delta(prev->ss_data.ks_utilization.ku_wlentime,
954 curr->ss_data.ks_utilization.ku_wlentime);
955 r_delta = smbstat_hrtime_delta(prev->ss_data.ks_utilization.ku_rlentime,
956 curr->ss_data.ks_utilization.ku_rlentime);
957 tw_delta = smbstat_hrtime_delta(prev->ss_data.ks_utilization.ku_wtime,
958 curr->ss_data.ks_utilization.ku_wtime);
959 tr_delta = smbstat_hrtime_delta(prev->ss_data.ks_utilization.ku_rtime,
960 curr->ss_data.ks_utilization.ku_rtime);
961 rqs = smbstat_srv_info.si_total_nreqs / smbstat_srv_info.si_etime;
962
963 /* Average number of requests waiting */
964 if (w_delta != 0)
965 smbstat_srv_info.si_avw = w_delta / smbstat_srv_info.si_hretime;
966 else
967 smbstat_srv_info.si_avw = 0.0;
968
969 /* Average number of request running */
970 if (r_delta != 0)
971 smbstat_srv_info.si_avr = r_delta / smbstat_srv_info.si_hretime;
972 else
973 smbstat_srv_info.si_avr = 0.0;
974
975 /* Utilization */
976 smbstat_srv_info.si_upct =
977 (smbstat_srv_info.si_avr / curr->ss_data.ks_maxreqs) * 100;
978
979 /* Average wait service time in milliseconds */
980 smbstat_srv_info.si_rserv = 0.0;
981 smbstat_srv_info.si_wserv = 0.0;
982 if (rqs > 0.0 &&
983 (smbstat_srv_info.si_avw != 0.0 ||
984 smbstat_srv_info.si_avr != 0.0)) {
985 tps = 1 / rqs;
986 if (smbstat_srv_info.si_avw != 0.0)
987 smbstat_srv_info.si_wserv =
988 smbstat_srv_info.si_avw * tps;
989 if (smbstat_srv_info.si_avr != 0.0)
990 smbstat_srv_info.si_rserv =
991 smbstat_srv_info.si_avr * tps;
992 }
993
994 /* % of time there is a transaction waiting for service */
995 if (tw_delta != 0) {
996 smbstat_srv_info.si_wpct = tw_delta;
997 smbstat_srv_info.si_wpct /= smbstat_srv_info.si_hretime;
998 smbstat_srv_info.si_wpct *= 100.0;
999 } else {
1000 smbstat_srv_info.si_wpct = 0.0;
1001 }
1002
1003 /* % of time there is a transaction running */
1004 if (tr_delta != 0) {
1005 smbstat_srv_info.si_rpct = tr_delta;
1006 smbstat_srv_info.si_rpct /= smbstat_srv_info.si_hretime;
1007 smbstat_srv_info.si_rpct *= 100.0;
1008 } else {
1009 smbstat_srv_info.si_rpct = 0.0;
1010 }
1011 }
1012
1013 /*
1014 * smbstat_srv_process_requests
1015 *
1016 * Processes the data relative to the SMB requests and stores the results in
1017 * the structure smbstat_srv_info.
1018 */
1019 static void
smbstat_srv_process_requests(smbstat_srv_snapshot_t * curr,smbstat_srv_snapshot_t * prev)1020 smbstat_srv_process_requests(
1021 smbstat_srv_snapshot_t *curr,
1022 smbstat_srv_snapshot_t *prev)
1023 {
1024 smbstat_req_info_t *info;
1025 smb_kstat_req_t *curr_req;
1026 smb_kstat_req_t *prev_req;
1027 int i, idx;
1028 boolean_t firstcall = (prev->ss_snaptime == 0);
1029
1030 for (i = 0; i < SMBSRV_KS_NREQS1; i++) {
1031 info = &smbstat_srv_info.si_reqs1[i];
1032 idx = info->ri_opcode;
1033 if (idx >= SMBSRV_KS_NREQS1)
1034 continue;
1035 curr_req = &curr->ss_data.ks_reqs1[idx];
1036 prev_req = &prev->ss_data.ks_reqs1[idx];
1037 smbstat_srv_process_one_req(
1038 info, curr_req, prev_req, firstcall);
1039 }
1040
1041 for (i = 0; i < SMBSRV_KS_NREQS2; i++) {
1042 info = &smbstat_srv_info.si_reqs2[i];
1043 idx = info->ri_opcode;
1044 if (idx >= SMBSRV_KS_NREQS2)
1045 continue;
1046 curr_req = &curr->ss_data.ks_reqs2[idx];
1047 prev_req = &prev->ss_data.ks_reqs2[idx];
1048 smbstat_srv_process_one_req(
1049 info, curr_req, prev_req, firstcall);
1050 }
1051 }
1052
1053 static void
smbstat_srv_process_one_req(smbstat_req_info_t * info,smb_kstat_req_t * curr_req,smb_kstat_req_t * prev_req,boolean_t firstcall)1054 smbstat_srv_process_one_req(
1055 smbstat_req_info_t *info,
1056 smb_kstat_req_t *curr_req,
1057 smb_kstat_req_t *prev_req,
1058 boolean_t firstcall)
1059 {
1060 double nrqs;
1061
1062 nrqs = smbstat_sub_64(curr_req->kr_nreq,
1063 prev_req->kr_nreq);
1064
1065 info->ri_rqs = nrqs / smbstat_srv_info.si_etime;
1066
1067 info->ri_rbs = smbstat_sub_64(
1068 curr_req->kr_rxb,
1069 prev_req->kr_rxb) /
1070 smbstat_srv_info.si_etime;
1071
1072 info->ri_tbs = smbstat_sub_64(
1073 curr_req->kr_txb,
1074 prev_req->kr_txb) /
1075 smbstat_srv_info.si_etime;
1076
1077 info->ri_pct = nrqs * 100;
1078 if (smbstat_srv_info.si_total_nreqs > 0)
1079 info->ri_pct /= smbstat_srv_info.si_total_nreqs;
1080
1081 if (firstcall) {
1082 /* First time. Take the aggregate */
1083 info->ri_stddev =
1084 curr_req->kr_a_stddev;
1085 info->ri_mean = curr_req->kr_a_mean;
1086 } else {
1087 /* Take the differential */
1088 info->ri_stddev =
1089 curr_req->kr_d_stddev;
1090 info->ri_mean = curr_req->kr_d_mean;
1091 }
1092 if (nrqs > 0) {
1093 info->ri_stddev /= nrqs;
1094 info->ri_stddev = sqrt(info->ri_stddev);
1095 } else {
1096 info->ri_stddev = 0;
1097 }
1098 info->ri_stddev /= NANOSEC;
1099 info->ri_mean /= NANOSEC;
1100 }
1101
1102
1103 /*
1104 * smbstat_srv_current_snapshot
1105 *
1106 * Returns the current snapshot.
1107 */
1108 static smbstat_srv_snapshot_t *
smbstat_srv_current_snapshot(void)1109 smbstat_srv_current_snapshot(void)
1110 {
1111 return (&smbstat_srv_snapshots[smbstat_snapshot_idx]);
1112 }
1113
1114 /*
1115 * smbstat_srv_previous_snapshot
1116 *
1117 * Returns the previous snapshot.
1118 */
1119 static smbstat_srv_snapshot_t *
smbstat_srv_previous_snapshot(void)1120 smbstat_srv_previous_snapshot(void)
1121 {
1122 int idx;
1123
1124 idx = (smbstat_snapshot_idx - 1) & SMBSTAT_SNAPSHOT_MASK;
1125 return (&smbstat_srv_snapshots[idx]);
1126 }
1127
1128 /*
1129 * smbstat_usage
1130 *
1131 * Prints out a help message.
1132 */
1133 static void
smbstat_usage(FILE * fd,int exit_code)1134 smbstat_usage(FILE *fd, int exit_code)
1135 {
1136 (void) fprintf(fd, gettext(SMBSTAT_HELP));
1137 exit(exit_code);
1138 }
1139
1140 /*
1141 * smbstat_fail
1142 *
1143 * Prints out to stderr an error message and exits the process.
1144 */
1145 static void
smbstat_fail(int do_perror,char * message,...)1146 smbstat_fail(int do_perror, char *message, ...)
1147 {
1148 va_list args;
1149
1150 va_start(args, message);
1151 (void) fprintf(stderr, gettext("smbstat: "));
1152 /* LINTED E_SEC_PRINTF_VAR_FMT */
1153 (void) vfprintf(stderr, message, args);
1154 va_end(args);
1155 if (do_perror)
1156 (void) fprintf(stderr, ": %s", strerror(errno));
1157 (void) fprintf(stderr, "\n");
1158 exit(1);
1159 }
1160
1161 /*
1162 * smbstat_sub_64
1163 *
1164 * Substract 2 uint64_t and returns a double.
1165 */
1166 static double
smbstat_sub_64(uint64_t a,uint64_t b)1167 smbstat_sub_64(uint64_t a, uint64_t b)
1168 {
1169 return ((double)(a - b));
1170 }
1171
1172 /*
1173 * smbstat_zero
1174 *
1175 * Returns zero if the value passed in is less than 1.
1176 */
1177 static double
smbstat_zero(double value)1178 smbstat_zero(double value)
1179 {
1180 if (value < 1)
1181 value = 0;
1182 return (value);
1183 }
1184
1185 /*
1186 * smbstat_strtoi
1187 *
1188 * Converts a string representing an integer value into its binary value.
1189 * If the conversion fails this routine exits the process.
1190 */
1191 static uint_t
smbstat_strtoi(char const * val,char * errmsg)1192 smbstat_strtoi(char const *val, char *errmsg)
1193 {
1194 char *end;
1195 long tmp;
1196
1197 errno = 0;
1198 tmp = strtol(val, &end, 10);
1199 if (*end != '\0' || errno)
1200 smbstat_fail(1, "%s %s", errmsg, val);
1201 return ((uint_t)tmp);
1202 }
1203
1204 /*
1205 * smbstat_termio_init
1206 *
1207 * Determines the size of the terminal associated with the process.
1208 */
1209 static void
smbstat_termio_init(void)1210 smbstat_termio_init(void)
1211 {
1212 char *envp;
1213
1214 if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &smbstat_ws) != -1) {
1215 if (smbstat_ws.ws_row == 0) {
1216 envp = getenv("LINES");
1217 if (envp != NULL)
1218 smbstat_ws.ws_row = atoi(envp);
1219 }
1220
1221 if (smbstat_ws.ws_col == 0) {
1222 envp = getenv("COLUMNS");
1223 if (envp != NULL)
1224 smbstat_ws.ws_row = atoi(envp);
1225 }
1226 }
1227 if (smbstat_ws.ws_col == 0)
1228 smbstat_ws.ws_col = 80;
1229 if (smbstat_ws.ws_row == 0)
1230 smbstat_ws.ws_row = 25;
1231 }
1232
1233 /*
1234 * smbstat_snapshot_idx_inc
1235 *
1236 * Increments the snapshot index.
1237 */
1238 static void
smbstat_snapshot_inc_idx(void)1239 smbstat_snapshot_inc_idx(void)
1240 {
1241 smbstat_snapshot_idx++;
1242 smbstat_snapshot_idx &= SMBSTAT_SNAPSHOT_MASK;
1243 }
1244
1245 /*
1246 * smbstat_req_cmp_name
1247 *
1248 * Call back function passed to qsort() when the list of requests must be sorted
1249 * by name.
1250 */
1251 static int
smbstat_req_cmp_name(const void * obj1,const void * obj2)1252 smbstat_req_cmp_name(const void *obj1, const void *obj2)
1253 {
1254 return (strncasecmp(
1255 ((smbstat_req_info_t *)obj1)->ri_name,
1256 ((smbstat_req_info_t *)obj2)->ri_name,
1257 sizeof (((smbstat_req_info_t *)obj2)->ri_name)));
1258 }
1259
1260 /*
1261 * smbstat_req_order
1262 *
1263 * Snapshots the smbsrv module statistics once to get the name of the requests.
1264 * The request list is smbstat_srv_info is then sorted by name or by code
1265 * depending on the boolean smbstat_opt_a.
1266 * The function should be called once during initialization.
1267 */
1268 static void
smbstat_req_order(void)1269 smbstat_req_order(void)
1270 {
1271 smbstat_srv_snapshot_t *ss;
1272 smbstat_req_info_t *info;
1273 smb_kstat_req_t *reqs;
1274 int i;
1275
1276 smbstat_srv_snapshot();
1277 ss = smbstat_srv_current_snapshot();
1278
1279 reqs = ss->ss_data.ks_reqs1;
1280 info = smbstat_srv_info.si_reqs1;
1281 for (i = 0; i < SMBSRV_KS_NREQS1; i++) {
1282 (void) strlcpy(info[i].ri_name, reqs[i].kr_name,
1283 sizeof (reqs[i].kr_name));
1284 info[i].ri_opcode = i;
1285 }
1286 if (smbstat_opt_n)
1287 qsort(info, SMBSRV_KS_NREQS1, sizeof (smbstat_req_info_t),
1288 smbstat_req_cmp_name);
1289
1290 reqs = ss->ss_data.ks_reqs2;
1291 info = smbstat_srv_info.si_reqs2;
1292 for (i = 0; i < SMBSRV_KS_NREQS2; i++) {
1293 (void) strlcpy(info[i].ri_name, reqs[i].kr_name,
1294 sizeof (reqs[i].kr_name));
1295 info[i].ri_opcode = i;
1296 }
1297 if (smbstat_opt_n)
1298 qsort(info, SMBSRV_KS_NREQS2, sizeof (smbstat_req_info_t),
1299 smbstat_req_cmp_name);
1300 }
1301
1302 /*
1303 * Return the number of ticks delta between two hrtime_t
1304 * values. Attempt to cater for various kinds of overflow
1305 * in hrtime_t - no matter how improbable.
1306 */
1307 static double
smbstat_hrtime_delta(hrtime_t old,hrtime_t new)1308 smbstat_hrtime_delta(hrtime_t old, hrtime_t new)
1309 {
1310 uint64_t del;
1311
1312 if ((new >= old) && (old >= 0L))
1313 return ((double)(new - old));
1314 /*
1315 * We've overflowed the positive portion of an hrtime_t.
1316 */
1317 if (new < 0L) {
1318 /*
1319 * The new value is negative. Handle the case where the old
1320 * value is positive or negative.
1321 */
1322 uint64_t n1;
1323 uint64_t o1;
1324
1325 n1 = -new;
1326 if (old > 0L)
1327 return ((double)(n1 - old));
1328
1329 o1 = -old;
1330 del = n1 - o1;
1331 return ((double)del);
1332 }
1333
1334 /*
1335 * Either we've just gone from being negative to positive *or* the last
1336 * entry was positive and the new entry is also positive but *less* than
1337 * the old entry. This implies we waited quite a few days on a very fast
1338 * system between displays.
1339 */
1340 if (old < 0L) {
1341 uint64_t o2;
1342 o2 = -old;
1343 del = UINT64_MAX - o2;
1344 } else {
1345 del = UINT64_MAX - old;
1346 }
1347 del += new;
1348 return ((double)del);
1349 }
1350
1351 static void *
smbstat_zalloc(size_t size)1352 smbstat_zalloc(size_t size)
1353 {
1354 void *ptr;
1355
1356 ptr = umem_zalloc(size, UMEM_DEFAULT);
1357 if (ptr == NULL)
1358 smbstat_fail(1, gettext("out of memory"));
1359 return (ptr);
1360 }
1361
1362 static void
smbstat_free(void * ptr,size_t size)1363 smbstat_free(void *ptr, size_t size)
1364 {
1365 umem_free(ptr, size);
1366 }
1367